Elevator.



No. 664.983. Patented Ian. I I9 I T.L. TINBHEB.

ELEVATOR.

' (Application med July 7, 1900.

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(No Model.)

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n. 664,983. Patented Jan. I, I901.

T L. Tl-NCHER.

ELEVATOR.

(Application am .m 7, 1900.; (No Model.)

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No. 664,983. I Patented m. I, 1901.

T. L. TINCHER.

ELEVATOR.

(Applicltion filed. July 7, 190 0.)

(No IlodoL) 4 Sheets-Shoot 3.

I W// x 3 WWW mm a UNITED STATES PATENT Drrrcn- THOMASIL. TINCHER, OFCHICAGO, ILLINOIS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 664,983, dated January1, 1901.

Application filed July 7. 1900.

tion.

My invention relates to elevators in which traveling batches arecarried, one series above the elevator-car and another below, closingthe elevator-shaft automatically on a level with the several floors asthe .car ascends or descends.

One object of my invention is to close the shaft on a level with'eachfloor with a light impervious strong fireproof hatch without imposingany substantial burden upon the elevator mechanism, thus avoiding thedraft up elevator-shafts, which accelerates and communicates fire fromone story of a building to another, preventing persons from falling downthe shaft, and simplifying the problem of heating by preventing theescape of heat from the lower stories to those above.

Another object is to provide mechanism for automatically locking andunlocking each hatch at its proper floor without shock or jar to thecar. I

A further object is to provide means for holding the hatches positivelyin position in the shaft independent of friction by a mechanism whichmay be easily adjusted to chim Bey-shaped shafts or to shafts the wallsof which have sunk out of parallel and which shall make it impossiblefor the hatches to jam or stick so long as an ordinary elevatorcar canoperate in such shaft.

A further object is to provide means for shipping and unshipping theupper series of hatches at the top of the shaft when this is desired.

With the above and other objects in view my invention consists in thenovel construction, combination, and arrangement of parts to behereinafter more particularly described, and specifically pointed out inthe claims.

In describing my invention reference is had to the accompanyingdrawings,forming a part of this specification, wherein like letters and.

Serial No. 22,873. (No model.)

numbersof reference indicate similar parts throughout the several views.

Figure 1 is a vertical section through a building of severalstories,showing my device in place. Fig. 2 is a plan section on line 2of Fig. 1. Fig. 3 is a rear elevation on line 3 of Fig. 1, showing onearrangement of the weights which operate the several hatches.

Fig. 4. is a sectional view of the shaft, showing the shoes whichoperate the spring locking device in elevation. Fig. 5 is a horizontalsection through the elevator-shaft, showing one of the batches and thearrangement of slots. upper series of hatches and the arrangement ofslots therein. Fig. 7 shows the arrangement of slots in the lower seriesof hatches. Fig. ,8 is a cross-section 'on the line 8, Fig. 5, showingone of my methods of constructing the hatches. Figs. 9 and 10 show mydevice for shipping and unshipping the upper series of hatches at thetop of the shaft,.Fig. 9 being a section on the line 9, Fig.1. Fig.'l1is a cross-section of the bolt and crank along line 11 in Fig. 10. Fig.12 shows my sprin gcatch or locking device. Fig. 13 shows in perspectiveone of the stops for arresting the hatches. Fig. 14 is a cross-sectionon line 14 of Fig. 12. Fig. 15 is a side elevation showing one of thehatches locked in position by the spring-catch at its proper floor.

In the drawings, A denotes the elevator-car; B B B B the walls of theelevator-shaft; O (l (J 0 the several floors in the building; a, b, andc, the series of hatches below the car; a b c d, the series above thecar. a -is the counterbalance to hatch a, b to plate b, c to hatch c,&c. Each weight or counterbalance is connected to its proper hatch bycables a,

b 0 running over suitable pulleys at the top of the shaft and passingthrough the perforations a b 0 Fig. 5.) 7 These weights orcounterbalances are sufficient each to lift the hatch to which it isconnected and cause it to lie snugly 9 Fig. 6 is an elevation showingthe (Shown more particularly in IOO to the car by the upright anddownright bolts 01' posts It 72. 72, 71;. The elastic cushions 1; i i'11 t, 850., are disposed at the corners of the framework and atintermediate points thereon.

1 and 2 are guide-tracks on the walls B and B, sliding in slots 3 and 4of each batch.

D D D are three of four rounded or tapering shoes fastened to the car,two on each side, in such a way as to project upward and downward fromthe floor-level of the car approximately parallel to the walls of theshaft, tapering or deflected inward at their ends and adapted to passfreely through the slots 5, 6, 7, and S of each hatch, as shown in Figs.4 and 5. Besides operating the spring looks or catches, as hereinaftershown and described, these shoes serve to hold the lower series ofhatches in perfect position in the shaft and tend to prevent sticking orjamming.

On the walls B and B on alevel with each floor of the building are theseries of stops 9: cc and the series y y, so disposed that at a levelwith any given iioor the pair 00 0c are slightly nearer together andeach nearer the medial line of the wall B than the pair m 0.3 on thefloor below, and the same is true of the series 1 3 on the wall 13.

As the lower series of hatches rises with the car, impelled by thecounterbalances a b 0 the hatch a is arrested by the stops 00 0c and y yat the level of the floor while the hatches b and 0, being slotted at 9and 10 next to the wall B and also at 1.1 and 12 next to the wall B",avoid this set of steps; but the slots 9 and 10 and 11. and 12 of hatchb, not being in alinement with the set of stops so a," and 1 y on thefloor O since the stops at w are slightly nearer than the stops at C tothe medial line of the wall B and y 1 the medial line of B", plate I),is therefore arrested at the floor C the hatch c avoiding this secondset of stops by reason of the greater lateral enlargement of slots 9 and10 and 11 and 12 of said hatch. Inv this manner each hatch will bestopped at its proper floor only. While I have shown in my drawings onlythree hatches in the lower series, a greater or less number will be usedaccording to the number of floors in the building.

Figs. 12, 14:, and 15 show in detail my looking device, a frontelevation of the same on the wall 13 appearing in Fig. 1. This lockingdevice or spring-catch is set into the walls B and B on a level witheach floor. I prefer to use four catches to each floor. In Fig. 12, e isthe operating-arm of the spring-bolt G, rounded or mounted with a rollerf at its end, and normally held in projection into the shaft and into aportion of thepath of the shoe D by the spring F. The supportingarm g isalso held normally in projection into the shaft by the spring F, butdoes not enter the path of the shoe D. Catch E is adapted to becountersunk and fastened on the walls of the shaft by means of thecasing and screwplate shown in Fi 12.

The elevator-car is operated in the ordinary way by cables and pulleys,as shown in Figs. 1 and 2, and as it rises the lower series of hatches,carried by the weights (t b 0 will follow until floor C is reached, whenthe first set of stops x and 11 11 will take off hatch a, as heretoforedescribed, and allow I) and c to pass, while bolts G G Gr" G (which, byreason of the engagement of the tapering or rounded tops of the shoes DD D D" with the arms a e e e", have been pushed back out of the shaft)will be thrown into normal position by springs F I F F as soon as theshoes D D D D pass and will engage the hatch a, thus looking it securelyin place on a level with floor 0 In the same manner the stops andcatches on succeeding floors will arrest and lock thei r proper hatches.In Fig. 1 I have shown hatch a. closing the garret of the shaft. As thecar rests on a level with the top floor O, the upper series of hatchesare stacked in series 1') c (l upon the elastic buffer H and the lowerseries of hatches locked, each at its proper floor, by catches E E E E.As the car descends the shoes D D D D, passing through slots 0, 6, 7,and 8 of the top hatch of the lower series, engage with the rollers ff ff on arms 8 c c e, springs F F F F are forced back, the bolts G G Grelease the hatch, and the descending car forces it downward on theelastic buffer H. In a similar manner the hatches below are released andforced downward into the bottom of the shaft. Each one of the upperseries of hatches avoids the spring-catches by means of slots 5 6 '7 8in alinement therewith. Each is guided by tracks 1 and 2,slidingin slots3 and aalescends by gravity, and is forced up by the elevatorcar. Thesteps a; a, y g on floor 0 arrest and support from below hatch a, whichhatches b and 0 pass by means of slots 9 and 10 and 11 and 12, the slotson hatch Z) being narrower than those on hatch c. The system of slots inthe upper series is similar to the system in the lower series, and eachhatch is arrested and held at its proper floor by the stops 0: x and y 3there being no necessity to lock these hatches in position, as they arenot counterbalanced, but raised by the car and lowered by gravity.

When it is desired to carry lumber or other freight projecting above thetop of the car, theupper series of hatches may be held at the top of theshaft by means of the device shown in Figs. 9, 10, and 11, in which is alever pivotallymounted at Z, and m and m link con nections to cranks o 0on shafts p and 1). Upon shafts p p are arms (1 similar to cranks o and0 and positioned similarly on the shafts. By operating handle'bar 7c theshafts are os cillated, throwing the arms (1 in the direction indicatedby the arrow in Fig. 11. In Fig. 11 the casingJ incloses the plunger 7*,recessed at s, in which recess the free end of arm qis in engagement,casing J being suitably slotted to provide free movement of arm q.Casing J IIO is provided with side walls 15, through which the shaft 1)passes and between which the arm q is confined, the face-plate beingpreferably countersunk and held in position within the wall B or B asthe case may be, by screws, as shown in Fig. 11. By this constructionthe plungers r r r r on the walls B and B can be thrown by turning thehandle-bar k to project into the shaft beneath the lowest of the upperseries of hatches and the framework of buffer H.

The hatches which I use in my device I prefer to construct of perforatedsteel riveted to a steel framework, lined beneath with asbestos and heldagainst the perforated plate by a wire mesh, as shown in Fig. 8.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with an elevator-car and an elevator-shaft, a seriesof traveling hatches adapted to be carried by said elevator-car and toclose said shaft at the difierent floors, an elastic buffer on thebottom of the car, counterbalances for normally holding said hatchesagainst the bottom of the car, a series of stops on opposite walls ofsaid shaft at successive levels, the'stops at the successive floorsbeing out of vertical alinement, said hatches havinga series of slots inline with the stops which a given hatch is designed to pass, but not inline with the stops at the floor it is designed to close, shoesextending upward and downward and tapered at their ends, a series oflocking devices having arms adapted to be pressed out of the path of thecar by said shoes, each arm'being adapted to release said lockingdevices when the elevator-car has passed, and springs throwing saiddevices into engagement with the hatches at their re- 40 spectivefloors, whereby a hatch is securely locked at its proper floor.

2. In combination with an elevator-car and elevator-shaft, a series ofstops on opposite walls of the shaft at successive floor-levels, aseries of traveling hatches adapted to be carried by the elevator-car,each of such dimensions as to approximately close the elevatorshaft andhaving slots in vertical alinement, shoes extending upward and downwardand tapered at their ends mounted on said elevator-car in verticalalinement with said slots and adapted to pass therethrough, lockingdevices on successive floor-levels having an operating-arm in verticalregistration with said slots and adapted to be retracted by said shoes,thereby releasing the lock for the pur poses described.

3. In combination with an elevator-car and elevator-shaft, a shoe onsaid car, a series of hatches adapted to be carried with saidelevator-oar, having therein slots in alinement with said shoe; a seriesof locking devices mounted on opposite walls of said shaft at successivefloor-levels, each consisting of a bolt with two arms of unequal length,the longer arm being in alinement with the said shoe, the shorter armbeing out of alinement with said slots and adapted to engage saidbatches, and a spring for projecting said bolt, said spring beingadapted to be retracted by said shoe acting upon said longer arm,thereby unlocking the plate, for the purposes described.

THOMAS L. TINOHER. Witnesses:

O. W. HILT,

ROBERT CATHERWOOD.

